Home / 12,728.46-19,100.16-5,332.36

Finding the Fourth Proportional to 12,728.46, 19,100.16 and 5,332.36

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Solution

The fourth proportional to 12,728.46, 19,100.16 and 5,332.36 is: 8,001.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,728.46 : 19,100.16 = 5,332.36 : x
  2. Step 2: Convert to fraction form
    12,728.46/19,100.16 = 5,332.36/x
  3. Step 3: Cross multiply
    12,728.46x = 19,100.16 × 5,332.36
  4. Step 4: Simplify right side
    12,728.46x = 101,848,929.18
  5. Step 5: Solve for x
    x = 101,848,929.18/12,728.46
  6. Step 6: Final answer
    x = 8,001.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.